Daikin EKHTS200AC, EKHTS260AC, EKHTSU200AC, EKHTSU260AC, EKUHWHTA Installation manuals

INSTALLATION MANUAL

Domestic hot water tank with UK kit for

air to water heat pump system

EKHTS200AC EKHTS260AC

EKHTSU200AC EKHTSU260AC EKUHWHTA

2x 5x

13 4

340 mm

+ +

1x 1x

3 9

772

902

1032

120

Ø60

778

694

443

600

300

9 3

10 4

>250

>600

≥30

≥50

>30

EKHBRD* EKHVMR/YD* EKHVH/X*

>250 >250 >300

EKHTSU200AC EKHTSU260AC EKUHWHTA

Domestic hot water tank with UK kit for air to water

heat pump system

Installation manual

CONTENTS Page

Introduction........................................................................................ 1

General information..................................................................... 1

Scope of this manual................................................................... 1

Model identiﬁcation .....................................................................1

Accessories .......................................................................................2

Accessories supplied with the domestic hot water tank ............. 2

Accessories supplied with the EKUHWHTA kit for

the domestic hot water tank ........................................................2

Optional equipment ..................................................................... 2

Overview of the unit........................................................................... 2

Main components........................................................................2

Outlook diagram..........................................................................3

Installation of the EKHTSU domestic hot water tank......................... 4

Installation guidelines..................................................................4

Installing and commisioning the domestic hot water tank ........... 4

Installation of the EKUHWHTA kit on the domestic hot water tank.. 11

Piping requirements ..................................................................11

Installation procedure of the EKUHWHTA kit ............................12

Maintenance .................................................................................... 13

Descaling ..................................................................................13

Draining.....................................................................................13

Troubleshooting ...............................................................................13

General guidelines ....................................................................13

General symptoms .................................................................... 13

Technical speciﬁcations ................................................................... 14

Domestic hot water tank speciﬁcations ..................................... 14

READ THESE INSTRUCTIONS CAREFULLY BEFORE INSTALLATION. KEEP THIS MANUAL IN A HANDY PLACE FOR FUTURE REFERENCE.

PLEASE LEAVE THIS MANUAL WITH THE EKHWSU DOMESTIC HOT WATER TANK AFTER INSTALLATION.

IMPROPER INSTALLATION OR ATTACHMENT OF EQUIPMENT OR ACCESSORIES COULD RESULT IN ELECTRIC SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OR OTHER DAMAGE TO THE EQUIPMENT. BE SURE ONLY TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE SPECIFICALLY DESIGNED FOR USE WITH THE EQUIPMENT AND HAVE THEM INSTALLED BY A PROFESSIONAL.

IF UNSURE OF INSTALLATION PROCEDURES OR USE, ALWAYS CONTACT YOUR DAIKIN DEALER FOR ADVICE AND INFORMATION.

THE UNIT DESCRIBED IN THIS MANUAL IS DESIGNED FOR INDOOR INSTALLATION ONLY AND FOR AMBIENT TEMPERATURES RANGING 5°C~30°C.

INTRODUCTION

General information

Thank you for purchasing this domestic hot water tank.

The domestic hot water tank must be installed by a licensed technician and be installed in compliance with instructions as of subject in this manual, all current legislation, codes of practice and regulations governing the installation of unvented hot water cylinders in force at the date of installation.

This installation is subject to building regulation approval, notify Local Authority of intention to install.

The EKHTS domestic hot water tank can be connected to EKHBRD, EKHVMRD, EKHVMYD, EKHVH and EKHVX indoor units. The domestic hot water tank is available in two sizes: approximately 200 and 260 litre. All models can be mounted on top of the indoor unit. For installation of the domestic hot water tank on the ﬂoor next to the indoor unit, the dedicated EKFMAHTB connection kit is required.

In case of EKHBRD*AA* indoor unit, the kit EKMKHT1 is required.

Scope of this manual

This installation manual describes the procedures for installing and connecting the EKHTSU domestic hot water tank together with the EKUHWHTA kit.

Model identiﬁcation

Domestic hot water tank

EK HTS U 200 AC

Series

Identiﬁcation of type

U = Special version for United Kingdom only

Hot water Tank Stainless steel

European Kit

The English text is the original instruction. Other languages are translations of the original instructions.

EKHTSU200+260AC + EKUHWHTA

Domestic hot water tank with UK kit for air to water heat pump system

4PW64052-1 – 08.2010

Installation manual

ACCESSORIES

A K

Accessories supplied with the domestic hot water tank

See ﬁgure 1.

1 Flexible hose of heat exchanger coil

2 Hot/cold water ﬂexible hose

3 Clamp

4 Knockout hole assembly (grommet + tie-wraps + screws)

5 Installation manual

6 Unpacking instruction sheet

7 3-way valve assembly (body + motor + clamps )+ T-piece

Accessories supplied with the EKUHWHTA kit for the domestic hot water tank

Main components

1 Pressure reducing valve

2 Expansion relief valve

Blind stop + 2 plastic screw-on closing caps for pressure reducing valve

Reducing coupler 22 mm - 15 mm

5 Expansion vessel of 18 litres

6 Tundish

7 Elbow/Drain valve 22 mm x 3/4” Male BSP

8 Adaptor 22 mm x 3/4” Female BSP

9 T-piece 22 mm x 22 mm x 22 mm

10 Instruction sheet

234 5

7610

1x2x

1x81x

Optional equipment

■ EKFMAHTB

Connection kit for installation of the domestic hot water tank on the ﬂoor next to the indoor unit.

Refer to the installation manual of the kit for more details.

■ EKMKHT1

In case the EKHTS*AC domestic hot water tank is to be installed on top of an EKHBRDAA series indoor unit, the additional EKMKHT1 kit is required.

Refer to the instruction sheet of the kit for more details.

OVERVIEW OF THE UNIT

The total system (indoor unit and outdoor unit) is designed for combination with a Daikin domestic hot water tank. In case another tank is being used in combination with the Daikin indoor unit, Daikin cannot guarantee neither good operation nor reliability of the system. For those reasons Daikin cannot give warranty of the system in such case.

A Hot water out connection

(G 3/4" Female)

B Temperature and pressure

relief valve

E Recirculation connection

(G 1/2" Male) K Cold water in connection

F Thermistor socket

G Flow inlet connection from

the main indoor unit at the bottom of the tank (quick coupling)

H Heat exchanger coil

J Return outlet connection

to the mainindoor unit at the bottom of the tank (quick coupling)

(G 3/4" Female)

L Thermistor

M Anode

N Casing

P Knockout holes for water

piping

Installation manual

Domestic hot water tank with UK kit for air to water heat pump system

EKHTSU200+260AC + EKUHWHTA

4PW64052-1 – 08.2010

Safety devices

3 9

772

902

1032

120

Ø60

778

694

443

600

300

>250

>30

>600

■ The domestic hot water tank relief valve connections may not be used for other purpose.

■ This domestic hot water tank can only be used with an EKHBRD, EKHVMRD, EKHVMYD, EKHVH or EKHVX indoor unit.

■ Thermal protector — The indoor unit is equipped with a thermal protector. The thermal protector is activated when the temperature becomes too high. When activated, the protector has to be reset on the indoor unit by pressing it (for access, remove the decoration panels like indicated in the manual of the indoor unit).

Switch off the power supply before opening the decoration panels of the indoor unit.

Outlook diagram

■ Temperature and pressure relief valve

The temperature and pressure relief valve prevents excessive water temperature (>95°C) and excessive water pressure (≥10 bar) in the domestic hot water tank.

■ Expansion relief valve (EKUHWHTA kit)

The pressure relief valve prevents excessive water pressure (≥8 bar) in the water circuit.

NOTE

Refer to "Installation of the EKUHWHTA kit on the

domestic hot water tank" on page 11 for connection of

other safety devices in accordance with relevant local and national regulations.

1 Hot water out connection (G 3/4" Female)

2 Cold water in connection (G 3/4" Female)

3 Hot water out connection at the bottom of the tank (quick coupling)

4 Cold water in connection at the bottom of the tank (quick coupling)

5 Recirculation connection (G 1/2" Male)

6 Flow inlet connection from the main indoor unit (quick coupling)

7 Return outlet connection to the main indoor unit (quick coupling)

8 3-way valve

9 Flow inlet connection from the main indoor unit at the bottom of the tank (quick coupling)

10 Return outlet connection to the main indoor unit at the bottom of the tank (quick coupling)

11 Knockout holes for water piping

12 Levelling feet

13 Temperature and pressure relief valve (15 mm Male)

Domestic hot water tank model H1 H2

EKHTSU200AC 2010 mm 1935 mm

EKHTSU260AC 2285 mm 2230 mm

EKHTSU200+260AC + EKUHWHTA

Domestic hot water tank with UK kit for air to water heat pump system

4PW64052-1 – 08.2010

Installation manual

INSTALLATION OF THE EKHTSU DOMESTIC HOT

1 Recirculation connection

WATER TANK

Installing and commisioning the domestic hot water tank

Installing the hot water tank on top of the indoor unit

■ Installation shall be done by a licensed technician, the choice of materials and installation shall comply with local and national regulations.

■ The equipment is not intended for use in a potentially explosive atmosphere.

■ Domestic hot water quality must be according to EU directive 98/83 EC.

■ For safety reasons, it is not allowed to add any kind of glycol to the water circuit.

■ To avoid stagnation of water, it is important that the storage capacity of the domestic hot water tank meets the daily consumption of domestic hot water. In cases where during longer periods of time there is no consumption of hot water, the equipment must be ﬂushed with fresh water before usage. The disinfection function provided on the equipment is speciﬁed in the operation manual of the indoor unit.

■ It is advised to avoid long runs of piping between the domestic hot water tank and the hot water end point (shower, bath, ...) and to avoid dead ends.

■ The installation must be in compliance with local and national regulations and may require additional hygienic installation measures.

■ For compliance with UK Building Regulations, thermostatic mixing valves must be installed.

■ Immediately after installation, the domestic hot water tank must be ﬂushed with fresh water. This procedure must be repeated at least once a day the ﬁrst 5 consecutive days after installation.

If required by relevant local and national regulations, connect a recirculation pump in between the hot water end point and the recirculation connection of the domestic hot water tank.

1 Unpack the domestic hot water tank according to the

instructions mentioned on the unpacking instruction sheet.

2 Check if all domestic hot water tank accessories are enclosed

(see "Accessories" on page 2).

3 Remove the decoration panels and top plates of the indoor unit.

Ta ke away the decoration panels by removing the 2 bottom screws and then unhitching the panel. Mount the top plate of the indoor unit on the domestic hot water tank module.

2x2x

4 Connect the 3-way valve

Only for EKHBRD and EKHVMR/YD units. Remove both parts of the drain plate on top of the indoor unit before installing the 3-way valve.

2 Hot water connection

3 Shower

4 Recirculation pump

Installation guidelines

Keep in mind the following guidelines when installing the domestic hot water tank:

■ The installation location is frost-free.

■ Standard installation location of the domestic hot water tank is

on top of the indoor unit.

If available service space to left and/or right side is limited, carefully consider all indoor module installation steps ﬁrst.

■ The domestic hot water tank can be ﬂoor mounted as well. In that case, the dedicated EKFMAHTB connection kit for installation of the domestic hot water tank next to the indoor unit is required and to be ordered separately.

■ Locate the domestic hot water tank in a suitable position to facilitate ease of maintenance. Refer to the grey-coloured zones indicated in the outlook diagram ﬁgure and to the installation manual of the indoor unit.

■ To avoid back siphonage it is advised to install a non-return valve on the water inlet of the domestic hot water tank in accordance with local and national regulations.

■ Ta ke care that in the event of a leak, water can not cause any damage to the installation space and surroundings.

■ If installing an EKHTSU* domestic hot water tank, installing the kit EKUHWHTA is obligatory. Refer to the UK Building Regulation G3.

Installation manual

Only for EKHVH/X indoor units. Remove the indoor unit switch box by unscrewing ﬁxations and by then sliding the switch box aside without disconnecting any wiring connections.

MAX.

15cm

Domestic hot water tank with UK kit for air to water heat pump system

EKHTSU200+260AC + EKUHWHTA

4PW64052-1 – 08.2010

+ 14 hidden pages